Using the TMeasy tire model

[Ahmethan Acar]

Hello, I have created a vehicle model with an NSC system using Chrono physics. I want to add the TMeasy tire model to this vehicle model to get realistic wheel-ground interaction. How can I use the TMeasy tire model?

[Radu Serban]

You need to provide more details about what you did. 

• Is this vehicle model created using Chrono::Vehicle?  If so, using a TMeasy tire is straightforward (look at the various vehicle models provided with the Chrono distribution). 
• Or are you building a vehicle “from scratch”, defining the bodies, joints, and force elements manually?  In this case, you can still use a tire model from Chrono::Vehicle, but you will have to create a “dummy” wheel object (since the Chrono::Vehicle tires assume they are attached to such an object).  Look for inspiration to the implementation of the tire node in the vehicle co-simulation code.

 

You also do not say if you are using Chrono through the C++ or Python interface, nor what version of the code you are working with. I strongly suggest you use the latest code in the Chrono git repository and, especially in the latter case above, do this in C++.

 

Radu

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[Ahmethan Acar]

I am using C++ and my version is the latest one from GitHub. My vehicle was not created using Chrono::Vehicle. I built it from scratch using ChSystemNSC, a rigid chassis/wheels as ChBody objects, revolute joints per wheel, and a shaft-based driveline (using ChShaft, ChShaftBodyRotation, ChShaftsGearbox, ChShaftsTorsionSpring, and ChShaftsAppliedTorque). Visualization uses Irrlicht. I want to use a tire from Chrono::Vehicle (specifically TMeasy).

11 Kasım 2025 Salı tarihinde saat 12:07:35 UTC+3 itibarıyla Radu Serban şunları yazdı:

[Radu Serban]

Is there any reason why you didn't use Chrono::Vehicle for this? We provide all templates needed for this topology. With that, using the TMeasu tires is straightforward.

If you want to stick with your own vehicle model, you will have to create the additional dummy wheel objects in order to connect a Chrono::Vehicle tire. I already pointed you to a piece of code that illustrates that.

Radu

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From: projec...@googlegroups.com <projec...@googlegroups.com> on behalf of Ahmethan Acar <ahmetha...@gmail.com>
Sent: Wednesday, November 12, 2025 9:49:21 AM
To: ProjectChrono <projec...@googlegroups.com>
Subject: Re: [chrono] Using the TMeasy tire model

To view this discussion visit https://groups.google.com/d/msgid/projectchrono/86a5fa11-472c-4bfb-9956-655fa0f568dbn%40googlegroups.com.